CN107252760B - Single-groove double-roller secondary coating structure - Google Patents
Single-groove double-roller secondary coating structure Download PDFInfo
- Publication number
- CN107252760B CN107252760B CN201710557140.2A CN201710557140A CN107252760B CN 107252760 B CN107252760 B CN 107252760B CN 201710557140 A CN201710557140 A CN 201710557140A CN 107252760 B CN107252760 B CN 107252760B
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- coating
- roller
- defoaming
- roll
- screen roller
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- 238000000576 coating method Methods 0.000 title claims abstract description 101
- 239000011248 coating agent Substances 0.000 title claims abstract description 99
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000003292 glue Substances 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 238000007774 anilox coating Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/086—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line a pool of coating material being formed between a roller, e.g. a dosing roller and an element cooperating therewith
- B05C1/0865—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line a pool of coating material being formed between a roller, e.g. a dosing roller and an element cooperating therewith the cooperating element being a roller, e.g. a coating roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Coating Apparatus (AREA)
Abstract
The invention discloses a single-groove double-roller secondary coating structure which comprises a first coating mechanism and a second coating mechanism, wherein the first coating mechanism comprises a first screen roller, the second coating mechanism comprises a second screen roller, a defoaming rubber roller is installed by matching the first screen roller and the second screen roller, and part of the defoaming rubber roller is immersed in a coating material of a groove. The invention has simple structure, convenient use, energy and material saving, reduces waste and improves the quality problems of coating bubbles, infirm interlayer combination, color and the like.
Description
Technical Field
The invention belongs to the field of coating, and particularly relates to a single-groove double-roller secondary coating structure.
Background
Coating technology is widely applied to coating and composite packaging of substrates such as paper, films and the like. At present, many printing and packaging machinery enterprises in China use coating compound equipment, the coating type and the glue scraping mode are single, and the application of the coating technology is greatly limited.
At present, a gravure coating machine mainly solves the problem of needing multiple coating by two modes, namely, secondary coating is carried out on the same coating machine, the efficiency of the mode is very low, and electric energy and materials are wasted; the other is to carry out the secondary coating on a coating machine, the secondary coating is two units which are the same and independent, the coating structure is more power-consuming, the equipment is longer, and the substrate loss is larger.
The coating equipment mainly uses a reticulate pattern (concave hole) coating roller for sizing coating. The coating is uniform, and the coating amount is relatively accurate (but the coating amount is difficult to adjust). When coating is carried out by using an anilox roller, the coating amount is mainly related to the depth of the pits of the anilox roller and the precision of the glue type. The deeper the depth of the pits of the anilox roller, the more the amount of glue transferred from the pits to the substrate correspondingly; conversely, the shallower the depth of the cells of the anilox roll, the less the amount of transfer to the substrate. There is also a large relationship with viscosity. Too high and too low glue viscosity are detrimental to the proper transfer of glue. The glue has high viscosity and is easy to transfer, and the glue is easy to flow when being too thin, so that the gluing is not uniform, and longitudinal or transverse flowing water marks are easy to generate. Therefore, once the kind of the coated anilox roll and the glue are fixed, it is difficult to adjust the coating amount thereof, which is a main reason why the application of the anilox roll is limited.
At present, the coating effect is improved mainly by two or more times of coating, but the problems of low efficiency, high energy consumption and the like caused by the coating are always concerned by people; the coating method is mainly simple, the base material is attached to the screen roller through the pressure of a rubber roll when the base material passes through the screen roller, the screen roller scrapes the coating on the base material after the coating is scraped by a scraper, the coating is completed, the coating amount and the coating leveling degree of the coating method are mainly determined by screen roller hole parameters and coating performance, and when the product requirement is high, the coating is realized through secondary coating or multiple coating. At present, multiple coating is a simple copy of the coating mode, the coating machine is set to be long enough to finish the storage of a plurality of coating units, the drying oven is arranged in the middle to finish the multiple coating, the coating mode has high energy consumption, large material loss and inconvenient operation, and the quality problems of bubbles, infirm interlayer combination, flooding and the like easily occur.
Disclosure of Invention
In order to solve the problems, the invention provides a single-groove double-roller secondary coating structure. The invention has simple structure, convenient use, energy and material saving, reduces waste, and improves the quality problems of coating bubbles, infirm interlayer bonding, flooding and the like.
In order to achieve the technical effects, the technical scheme of the invention is as follows:
a single-groove double-roller secondary coating structure comprises a first coating mechanism and a second coating mechanism, wherein the first coating mechanism comprises a first net roller, the second coating mechanism comprises a second net roller, defoaming rubber rollers are installed by matching the first net roller and the second net roller, and the defoaming rubber rollers are partially immersed in a coating material in a groove.
In a further improvement, the first mesh roller is provided with a first press roller and a first scraper in a matching way; and a second press roller and a second scraper are arranged on the second net roller in a matching way.
In a further improvement, the tangent included angle between the first scraper and the first mesh roller is minus degree; the tangent included angle of the second scraper and the second screen roller is minus degree.
In a further improvement, a drying device is arranged between the first coating mechanism and the second coating mechanism.
In a further improvement, the drying device is an oven.
In a further construction, the first and second wire rolls each have a diameter of 80-250mm.
The further improvement is that the diameter of the defoaming rubber roll is 20-80mm.
In a further improvement, the height difference between the second net roller and the coating material in the trough is more than 0 and less than 40mm.
In a further improvement, the linear speed ratio of the second screen roller to the defoaming rubber roller is 1:1 to 1:2.
in a further improvement, the number of the material tanks is one.
The invention has the following advantages:
1. compared with the traditional two-time coating, the structure saves electric power, and the coating is carried out for the second time after the primary drying is finished by the first-time coating, so that the quality is ensured, and the energy consumption is reduced.
2. The material has been saved to this structure, and two silos are needed in traditional secondary coating, and it can tentatively need to use coating to be the twice of this structure. The operator and the operation intensity required by the two material tanks in the actual operation process are twice of that of the structure; the traditional secondary coating uses a longer oven, and the waste of the base material is far higher than that of the structure.
3. Efficiency promotes, and this structure twice coating once accomplishes, has promoted production efficiency.
4. The product quality is improved, and the structure solves the problems of coating bubbles, interlayer bonding force and leveling; has remarkable effect.
Description of the drawings:
fig. 1 is a schematic diagram of a prior art structure.
Fig. 2 is a schematic structural diagram of the present patent.
The specific implementation mode is as follows:
as shown in fig. 2, the substrate 1 enters a first coating mechanism and is carried by a first mesh roller 4, the first scraper 2 scrapes off the substrate 1, the coating is coated on the substrate 1 under the pressure of a first press roller 3, and the substrate enters a second coating mechanism consisting of a second mesh roller 7 and a second press roller 9 after primary drying in an oven 10. First net roller 4 finishes coating back and the laminating of defoaming rubber roll 6, prevents that the air from getting into first net roller 4, prevents that the bubble from appearing in first coating.
The coating in the silo 8 is taken through defoaming rubber roll 6 and is transferred to second screen roller 7, after strickleing off by second scraper 5 with the substrate under the pressure of second compression roller 9 is used and is laminated together, transfer the coating to the base material and accomplish the secondary coating.
In the structure, the first screen roller 4 is attached to the defoaming rubber roller 6, so that the first screen roller 4, the defoaming rubber roller 6 and the liquid level of the coating are in seamless contact, and air is prevented from entering a screen hole to form bubbles.
In this structure, second net roller 7 is not direct contact with the silo liquid level and transfers the coating to second net roller 7 through defoaming rubber roll 6 by defoaming rubber roll 6 on, prevented the quality defect such as full-color, bubble with liquid level direct contact formation, for keeping coating supply sufficient, the linear velocity of defoaming rubber roll 6 should be the same with second net roller 7 or be higher than second net roller 7.
The diameter of the mesh roller in the structure is 80-250mm, wherein 200mm is more suitable
The diameter of the defoaming rubber rollers 4 and 7 in the structure is 20-80mm, wherein 60mm is more suitable
In the structure, the included angle between the scraper and the tangent line of the screen roller is 0-90 degrees, wherein 30 degrees is more suitable
In the structure, the second mesh roller 7 is not directly contacted with the coating in the trough, and has a liquid level difference of 0-40mm with the trough, wherein 20mm is more suitable.
The linear speed ratio of the second screen roller 7 to the defoaming rubber roller 6 in the structure is 1:1 to 1:2, wherein 1:1.5 is preferred. The linear speed of the wire roll 4 is the same as the wire roll 7.
The above description is only one specific guiding embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention using this concept shall fall within the scope of the invention.
Claims (7)
1. A single-groove double-roller secondary coating structure comprises a first coating mechanism and a second coating mechanism, and is characterized in that the first coating mechanism comprises a first screen roller (4), the second coating mechanism comprises a second screen roller (7), a defoaming rubber roll (6) is installed by matching the first screen roller (4) and the second screen roller (7), and part of the defoaming rubber roll (6) is immersed in a coating material in a material groove (8); the first mesh roller (4) is provided with a first press roller (3) and a first scraper (2) in a matching way; the second net roller (7) is provided with a second press roller (9) and a second scraper (5) in a matching way; a drying device is arranged between the first coating mechanism and the second coating mechanism; the substrate (1) enters the first coating mechanism and is carried by the first screen roller (4), the second screen roller (7) is not in direct contact with the liquid level of the trough and the coating is transferred to the second screen roller (7) from the defoaming rubber roll (6) through the defoaming rubber roll (6), and the first screen roller (4) is attached to the defoaming rubber roll (6) to enable the first screen roller (4), the defoaming rubber roll (6) and the liquid level of the coating to be in seamless contact.
2. A single slot twin roll secondary coating arrangement as claimed in claim 1, characterised in that the first doctor blade (2) is at an angle of 0-90 degrees to the tangent of the first wire roll (4); the included angle of the tangent of the second scraper (5) and the second net roller (7) is 0-90 degrees.
3. A single slot twin roll secondary coating arrangement as claimed in claim 1 wherein the drying means is an oven.
4. A single-slot twin-roll secondary coating arrangement as claimed in claim 1, characterized in that the first (4) and second (7) wire rolls are each 80-250mm in diameter.
5. The single slot two roll secondary coating structure of claim 1, wherein the diameter of the defoaming rubber roll is 20-80mm.
6. A single-slot twin-roller secondary coating arrangement as claimed in claim 1, characterised in that the height difference between the second wire roller (7) and the coating material in the slot (8) is greater than 0 and less than 40mm.
7. A single slot twin roll secondary coating structure as defined in claim 6 wherein the linear speed ratio of the second wire roll (7) to the defoaming rubber roll (6) is 1:1 to 1:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710557140.2A CN107252760B (en) | 2017-07-10 | 2017-07-10 | Single-groove double-roller secondary coating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710557140.2A CN107252760B (en) | 2017-07-10 | 2017-07-10 | Single-groove double-roller secondary coating structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107252760A CN107252760A (en) | 2017-10-17 |
| CN107252760B true CN107252760B (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710557140.2A Active CN107252760B (en) | 2017-07-10 | 2017-07-10 | Single-groove double-roller secondary coating structure |
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| CN (1) | CN107252760B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999325B (en) * | 2017-12-06 | 2020-06-05 | 常德金德新材料科技股份有限公司 | Defoaming system for coating |
| CN108514985B (en) * | 2018-02-27 | 2019-12-10 | 瑞安市帝艺鞋业有限公司 | Fabric coating device |
| CN111701794B (en) * | 2020-07-01 | 2021-07-27 | 刘利云 | Gluing machine capable of preventing glue leakage |
| CN112403798B (en) * | 2020-08-29 | 2022-02-18 | 安徽富印新材料有限公司 | Optical cement coating machine and optical cement production line |
| CN112403839B (en) * | 2020-11-30 | 2022-08-12 | 天津大学 | Large-scale preparation method and device of carbon dioxide separation multilayer composite membrane |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003019453A (en) * | 2001-07-06 | 2003-01-21 | Fuji Photo Film Co Ltd | Coating method and apparatus |
| CN2640621Y (en) * | 2003-06-05 | 2004-09-15 | 汕头市金通实业有限公司 | Coating combiner with defoaming function |
| JP2005000881A (en) * | 2003-06-13 | 2005-01-06 | Fuji Photo Film Co Ltd | Coating method and coating apparatus |
| KR100931225B1 (en) * | 2007-11-08 | 2009-12-10 | 도레이새한 주식회사 | Roll coating apparatus with double blades and optical film manufacturing method using the same |
| JP5276645B2 (en) * | 2010-11-10 | 2013-08-28 | 富士フイルム株式会社 | Coating apparatus and inkjet recording apparatus |
| CN204724422U (en) * | 2015-07-06 | 2015-10-28 | 优思吉德实业（上海）有限公司 | A kind of coating chute |
| CN206882042U (en) * | 2017-07-10 | 2018-01-16 | 常德金德镭射科技股份有限公司 | A kind of single secondary applying structure of groove double roller |
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| CN107252760A (en) | 2017-10-17 |
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Address after: 415001 Room 1702, 17th Floor, Shuangchuang Building, No. 661 Taolin Road, Changde Economic and Technological Development Zone, Changde City, Hunan Province Patentee after: CHANGDE JINDE NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 415001 No. 325, Deshan Avenue, Qingshan Community, Deshan Sub district Office, Changde Economic and Technological Development Zone, Hunan Province Patentee before: CHANGDE JINDE LASER TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20231013 Address after: 415001 Room 1702, 17th Floor, Shuangchuang Building, No. 661 Taolin Road, Changde Economic and Technological Development Zone, Changde City, Hunan Province Patentee after: Changde Deyuan Investment Promotion Co.,Ltd. Address before: 415001 Room 1702, 17th Floor, Shuangchuang Building, No. 661 Taolin Road, Changde Economic and Technological Development Zone, Changde City, Hunan Province Patentee before: CHANGDE JINDE NEW MATERIAL TECHNOLOGY Co.,Ltd. |